MKI67 and neuroendocrine neoplasm: Histopathological analysis revealed metastases of the neuroendocrine tumor infiltrating adipose tissue, Ki67 < 1%; 90% of the cells had positive staining for somatostatin receptor (SSTR) type 2, type 4, and type 5, and 50% of the tumor cells showed positive staining for SSTR type 3.